Lift truck



mii 2z 1924.

LIFT TRUCK Filed July 2 1921 4 Sheets-Sheet I5 AWE 22 w24; MMM@ H. E. Ross Filed July 2. 1921 4 Sheets-Sheet 4 Patented Apr. 2E, 132th,

HARRY B. ROSS, 03E BENTON HARBOR, MCHIGAN, ASSGNR T0 THE ROSS'CARRIER COMPANY, 0F BENTON .'HARBR, MICHGAI, A CORPORATION 0F MICEGAN,

T TRUCK.

.application filed July 2,

To @ZZ whom t may concern.'

Be it known that I, Hanni' B, Ross, a citizen of the United States, residing at Benton Harbor, in the county of Berrien and State of Michigan, have invented certain new and useful Improvements in Lift Trucks, of which the following is a specification.

The present invention concerns various features of novelty and advantage inpmotor lift trucks designed and adapted for the handling and transportation of sundry kinds of loads, and one of its prime purposes is the provision of an appliance of this type which permits'the carrying or conveying of relatively long material such as metal bars or lumber previously assembled on suitable supports or platforms, or other material of less length but possibly' of greater height', such as pieces of machinery, boxes, packages, etc., piled on platforms or trays.

More particularly' one object of the invention is the production of suoli a power-driven truck with an appropriate frame construction to enable it to handle the two classes of loads specified, and which will permit the vc hicle to be driven over or astride the load even though the latter may extend beyond the length of or be higher than the truck.

To attain this aim in practicable form, the axles as ordinarily used on vehicles are dis pensed with and all cross members are located above the clearance space required for the load, the longitudinal side members-of the frame extending back of such transverse elements to a considerable distance, the rear or pay load carrying wheels being located approximately' at the end of the rearwardly extended frame, thus providing an open loading space back of the essential operating mechanism extending unobstructedly upwardly from the floor or ground and hence adapted to accommodate a load of any height with the supporting or load carrying wheels on opposite sides of such open space.

A` further or additional aim of the invention is the production of an appliance of this style incorporating means for lifting the load and carrying it ,suspended during its transportation.

Another purpose of the invention isxthe supplying of a truck of this kind which is simple in structure, being composed Ofcomparatively few parts, vwhich is economical to manufacture, which is effective and efficient 1921. Serial No. 482,150.

in service, and which is unlikely to become impaired or injured in performing its work. To enable those skilled in this art to have a full and complete understanding of the invention both from structural and functional standpoints, I have illustrated a pre: ferred and desirable embodiment of the same in the accompanying drawings, throughou the several views of which like reference characters refer to the same parts. In the drawings:

Figure l is a'side elevation of the improved lift truck with one of the tubular frame members partially broken away; y

Figure 2 is a plan view ofthe truck with a small portion of the elements in section; Figure 3 is a partial front elevation and partial vertical section;

Figure 4 is a plan view of the steering mechanism; i

Figure 5 shows the steering Wheels swung '75 -the steering gear; and

Figure. 14 is a detail section of a part of the steering mechanism. Y Referring to these drawings,-it will be perceived that the machine frame comprises two, main, parallel, spaced, horizontal, side tubular members 3l, 31 of substantial length connected together crosswise the -truck at about onethird of theirlength from`their front ends by a channel, beam 32 fastened at its opposite ends above the side members 31, 31 to suitably-shaped castings 33, 33 having lower split portions 34, 34 surrounding and lixedlyr clamped to the respective tubular elements, these parts 31'and 34 being also keyed or splined together at 40 to prevent relative rotation.

The front ends of such pair of cylindrical, hollow, open-ended, side, frame members 31, 31 are pivctally connected together crosswise by an angle-bar 35 located slightly above suol side elements, each end of such .ongle- 7o ming a. hinge-member 36 riveted to its herr '-lisnosed flange, suoli. el'en'ient hf; s of hinge pin having n pivotal or o oooneotion with spaced, unstuiuiini)r 3i?, hetweni which is eno is eccom- .rom` teu, project. t., upwardly from and formed integrally with e CastingN il having e spilt divided part 42 receiving and nninovehly ,eiarnped on the end portion of enen of the cylindrical .ironie side elements 3l'. the El and heini; also keyed or splined together.

Ghlioue braces 453, 43, fastened at their rear ends to portions of the two freine castings 33, 33' and at their front ends to a, gusset-plate fifi riveted to the middle puri, of the iront ongle-hor 35, not io further stille,A the trame distortion.

e skeleton ironie thus Constructed is designed with. special reference for strength Ythstund the several and diverse strains The eieetrionsotor Lio which drives the trunk has runnions et its opposite ends roel@ ingly mounted or journelied in 'iront und rear hearing hruolietsV-r, 4 7, respectively, Carried on :in angle-iron 'frnino rigidly secured in any approved manner :u its front end to the Cross nngleher the ifezir end of such frame having n swivel heur el@ on the cross channel uhm-why to provide a three point support for the inotor fume, thus nvoidingy any warping or twisting therein when the truelr frame iields or Springs in passing over uneven road surfaces.

The truck is ootii driven he 'front Wheels and the ture hns heen provided for he reliable und i aeeompiislnnent o such functions,

" "onisin in its details forms the of contending :inpiientiou wli?, iied Oetoher S. i921.

pinion Fi on the iront end of o motor simi?, meshes with n herel gen in suit:iiilisupporterl differential-housng Si? remaining n differentiul mechanism nu( ste-ered from ./A. 4. usuel, or suitable character rfissofu., i n'iih ihe tivo shafts 54. :ind 5f'.

Eat-h such shafts is operatively confronted through ino universal joints 56 und if shoiV sho it 5o revoluhle in e rings und (il in n oep nei 32 on the top or' on upright housing;

l ioilowing strue-v Mense-e 63 open on one side at Se through a eulostantial angle or are.

Each such shaft 58 is equipped'with a Vertical bevel-pinion 65 vmeshing with the teeth of n horizontal geur 65 inst on the upper end of an upright shaft S7 oscillatory in ball-hearings 68 and 69 in the top of suon housing end in a lower gear housing def scribed below.

At its bottoni end each shaft 67 is fitted with a bevel drive pinion 71 in .mesh with the teeth of a hevel-gear 72 on one of the iront driving steering Wheels 73 equipped with a rubber tire 74 and revoluiole on ballhezirings Z5 and '7S on a short, outstanding, horizontal axle 7'? ixedly mounted in :i geur-lirmsing;A 78 fastened by screws 79 on the lower end of a vertical sleeve 8i surrounding shaft G7 and oscillatory in the housing 63 which forms a bearing therefor.

The bodyv of Such loed-oerrying driving and Steering Wheel is in cross-section of the forni shown .in Figure 3 and has u Cylindrical portion 82 extending into the casing or housing' 78, a suitable dust-guard 83 oeing; employed to exclude foreign matter.

Housing 63 has n lug 84 connected hy e link 85 to the lower portion of casting 4-2 und another hugT 8G neer its top is similarly eonneeted hy a link 87 oi equai. length to an upward extension S8 on the same costing.

In addition, the housing;F 63 has en outstanding lug,Y or projection 89 on its outer eide. the upper portion of which lits in a notch 91 on the underside of the iront projeeting end part of n lever 92 accommodated in large measure in the corresponding tubular frame n'iemher 3l and having e downturned end 93 resting on the bottom of the interior thereof soniedistnnoe from its front end.

intermediate its ends such lever is supplied with o downwardly extended rod Si lprojecting; down through en aperture in the hottom of the tubular frame meinher and through :in upertured spring sent 95 fais'- teued to the bottom of suoli meinher und eoneting with n eoil soring 96, the rod or 1oolt lim/ing :i Washer or seat member 97 Cooperating with the lower end oi the spring.

Obviously the loud on the ironie is imposed on or trnnsniiii'ed lo the Combined drive :nul steering wheel through such spi-inf; sind lever, thus giving' :in efficient and sn'ist'm'iori' eushion mounting with :i simple structure.

At the Center of its front, the truck has :i steeringorheel 9S on n suituhly-journnlled` i'ertimih steering: shaft' 99 carrying1 inside oi' :i small rusino' 10i on top of the difieientizil housing u geni' 102 in mesh Wii'ii e gen1 103 on the-,top yendl ofnn. 'appropriatelyiournnild, upright shaft 101i fitted et its lower end with u. pinion 105 counting with 1,491,549 l se the teethof a horizontal trunnion gear 106 mounted for oscillation on a trunnion-bearing 107 on theunder side of the differential gear case and another bearing 108 at the upper side of an o )posing plate 109 secured by bolts 110 to thelower partv of tlie differential gear casing as is fully illustrated ih Figure 3. y

Across its bottom face gear 106 has a groove 111 the opposite end portions of which have parallel side walls accommodating between them two, horizontal slide-bars 112 andk 113 arranged edge to edge and bearing on such guiding sidewalls whereby the two bars are always maintained in parallel relation. Each bar on its under side has a rectan ular recess 114 receiving a correspondinv y shaped dog 115 equipped with a journa vor shaft 116 1n a. bearing 117 in the plate 109. These two eccentric bearings and dogs are located on a diameter ofthe gear, sach dogs being capable of turning movement but otherwise not displaceable.

The front end of each bar 112 and 113, by means of two universal joints 118 and 119 and an interposed drag-link 121, adjustable as to length, isoperatively connected to the end of the forwardly-projecting steeringarin 122 secured to the top end ot' the correspending sleeve or hollow shaft 81 and pro-v jecting out through the arcuate aperture 64 in the housing 63.

By this comparatively simple means the front wheels are power driven by the electric-motor and they are also capable of turning sidewise by manipulation of the steering-wheel to guide the truck during its travel. The turning steering movements of the two wheels are of a differential nature by reason of the construction employed which is fully set forth in the companion pending application referred to above.

Each longitudinal, tubular member 31 of the main frame near its rear end has a suitably-shaped depending casting 123 fastened thereto, the upper portion 124 or" such casting being split and formed to surround the tubular element to which it is clamped, and another somewhat similar depending casting 125 Vis clamped to the tubular traine member near its extreme rear en i A horizontal, rectangular, wheelfraine member 126, in which the rear, rubber-tired ca 'ing wheel 127 is mounted on a suitable a s hinged at its front end at 12J to the' loner portion of each of the front one 123 ot the two castings referred to, and at its other end it is formed vwith spaced guiding ribs 131 straddling and cooperating with an up right guide 132 mounted in convenient inanner on the lower port-ion of casting 125.

A yoke 133, straddling the wheel is hinged to the rectangular wheel-frame 1161344 and its upper end has a rod 135 equipped with a spring-seat 136 on which rests a. coil-spring 137-bearing at its upper end on :an adjustable plate 138 in the top portion f a tubular housing 139 whose lower end is shaped to lit over and which is bolted to the frame nrcnlber 31, the rod extending through holes provided in sach member.

Thus the load on the track is imposed on the rear-carrying-wheels through suoli springs as will be readily understood, the franie and wheels being capable of relative movement by reason of the hinged mounting The latter have castings 1416 and 1117 riveted thereto and hinged at 118 and 149 to suitable members 151 and 152 mounted on the trent and rear ends of a horizontal connecting 'car 153 the latter serving also as a' guide bearing on 'the .inner faces of the two elements 123 and 125. 153 is prevented troni moving inwardly away from members 123 and 125 by blocks 150, 150 secured to the elements 151 and 152 and overlapping'the enter faces ,ot flanges on the parts 123 and 125 as shown in Figures 1 and 6.

rlhe two elements 112 and 1113 are pre` vented from shiitinnr lengthwise the truck, although capable o swinging laterally of the truclr, by of their outstanding danges engaging the parts 1230 and 1250 of the two castings 123 and 125, as shown in Figure 1.

asting 152 and another ineinber 154 secured to the connecting bar 153 are connected by slightly curved links 1552 and 156, respectively, with ears 157 and 158 on arms 150 and 161 hinged or 'fulcrurned at 162 and 163 on elements 125 and 124, the free or upper ends of such arnis being pivotally connected at 16e and 165 to a rod or link 166 operatively associated with a worm-wheel 167 by a connecting rod c1' pitman 168 hinged or pivoted at its opposite ends at 169 and 171 to the members 166 and 167.

Gear 167 mounted on a cross-shaft 172 revoluble in bearings 113 and 174 forming parts of castings 33, the end of the shaft at the opposite, side or the machine having a crank-arm 17a, and connecting pin 180i angular alignment or register with the gear pin 171 and connected through like mechareason of a pair of,-

nisrn to raise and lower the load supporting 3.?6 on e jiaoieeiiai 17'? oomeee io 'ehe ing eieoriomoor 178 moiiiie. oe ome the side iframe membere, "by-zin iriermeehing pinion arid gear 175i and ll, reepeotiveiy.

The ruck is eqiiippe with :i somgebettery in a; Saitek-ie housing above tile meiii electric-meier 4:3, Wih proper eieerie conductive Connections with the two motors, with an appropriate oiroiii; eoritroiier iiioimb ed adjacent to emi beneath speerirign Wheei, with a convenient ooteotiia'te brake, and with 'e seat and foot board for the opereor, none of which have. been iiiue'reieci es they reeiiy form no part of the present inventiori etiiough used on 'Ene eouei nie-- chine.

From an undersanding o this structure, it will be seen thai; the tubuier iongitueiinei members of rile iframe possess greet streiigiii, not oniy rai'ievereeiy, mit aise toieioieiiy, for lie amount of metal embodied in them, iiat the mein or principe?. cross-member oi the frame, tiie ohenriei beam 3%, seoureiy rivete ho the rrnme castings which in ture are iixedly keyed and clamped io the iengii Wise Lubuiar frame members, hee suifieierit torsional iiexioiiity eo permit the iorigimdinel frame eieriente 31, 31 co assume different horizontal einiges ai; tiie seme time precie@ Y img unciue or excessive erairis iii iie from cross member 312i which is piveteiiy eonieee et its oppoeiie vende to the elements 3i. Such hinge or pivotal connections of ehe from, transverse 'bar are an importent provemen in automobile or truck frame eoietruoione, pertieueriy in eppiiances of iiie type and styile, because they allow 'free more ment o iiie frame eomieoiioii, siiereiyl givieg iexioiiity over Aneven road surfaces, et the same ime eiimiiiating or avoiding Siresees in the me'zeriei likely io resul?, even.- tueiiy in cryetaiiizetion.

The frame and its ioafi are earrie. on iie lfour coil-springs Q6 and 137 interposed be tween the frame and the Severei 10nd- `ipporting carrying wheeis, and die vertioai oad thrust of the forward part o the inziciiine is carried on the bail-bearings 68 and 69 which perform; the double function hrust bearings and radial bearings for iie driving shafts 67.

The forward Wheels, arranged as drive wheels iii oonnecion with che improved. steering gear, permit ar. 'extremely short turning" radius without providing Steering moans for eil 'four wheels as is usually neces sary to secure the sharp turn. The new construction has the added advantage of permitting grenier load Space iii Width adjacent to the rear Wheels, at 'the seme time maintaining the space oecupied 'oy auch wheels in as email e compass as possible.

in order that he pair of {iared lifting iiooksmay he autometioaiiy pressed iii- Weidiy eloseiy egeinst the opposite edges of the ioefier piaeiome, y e liie Hoor or grouriri, woei; iie i; exeetiy eenzreiiy iirveii over or be@ to ehe piaior ii :and ie leed, tiie hoo oonforniinw to tiie poeicioii oi che ieee, se ssure t mi; as eoon ae tire piaorm emi iis ined have been reieeeioiii the grouzifi or iioor they Wiii oe euometieeiiy swung "ao e @entrai position with respect to the Week, side ei' the meeiiiiie is provifief with siigiitiy-beii leef-spring '83 mounted oil e eto E84 on casting 123 wie io'wer emi oearirig egeios: the omer efge oi eiemee; M2, iniie inward pressure ori the eprieg on faire hinged hook beine aoiiueeiiie 4Aoy of e, screw 185 'ziireeiiefi through e ieoie ehe casting nearing ai; one eli-ii egaiiie. the outer aoe of the spring.

The norei appliance is opereiec sieri-ieiiy i'siie oiiowing meneer:

The operezor eeoommodeteci or; eiiiflseoie seat, not eiioirra, ori. 'ehe iop o eine housing enclosing the motor 2:5 and the eleoirioiieiery above i, also'l noi illustrated. governs ehe speed of the Vehicle by die eieerieooiitrolier reierreA to which regni die action of ehe drivemoor 45, emi guiciee the truck by menipuieiion of' eieeringeviieei 98, ehe steering meeiiezeiefe being ezipeioie of eieeibiiig ver? eher@ or snort teme of the Vehicie.

if the load to be picked up is eompe iveiy long` iiie operator guidee iile over or eetricie ifa, the farro Sete of mergingwiieeis being on opposite sides hereo'iz The pair of spring-pressed booke een iie oppoei-e edges of the pietform ori which iheeioefi ie piied and reoee more or egairisi; ehe action of Jheir Sprirffe occasion requires of; receive the ioiideu l form beweei iieie.

The truck, ioaci, ite been thus brougiii iilo pr per osii'ioii, iiie operator eotuetes his ooiiroiier Lo eeergize ehe iifting meier 178, which by mirriiiigg 1S DOL',

175, causes the simliiteiieoiis upward r'oeek ing of eii ioni' :irme 159 and diie ii'fiiiig of the ioed oy the pair oi oppoeefi hooks le which projeci` iieieaiih he opposite edges oi its piefniiorm.

This iiiiiiglj action Continues; iiriigii iie shaft 172 has turned l?" degrees time bringing the conneoting-rode 16S inio dee/(ioenter posieion and the ooiiziertieiis o i:he arme 159 ami 161 with ine iinks L55 sind 15 to a position approaching dead-Sentier, whereby 'the efraim on die 'ree/iii of the Worm emi Worm-wheei :mii iie ioad strains on he connecting-rode 168 ere reduced to a minimum.

The ioaci time elevated is carried or arenepored by the ruck in euch suspended raie fiori to the goieee ei whereupon the Mii-ieg motor ie emrgieeo, elle wore-re` and W iosa" Wheel, Worm, and gearing moving in the same direction as during the load elevatinfr action to cause a descent of the hooks an their associated load and platform to deposit the latter on the ground or door as the \\case may be` whereupon the truck may move away ma manner well understood.

During such lifting and lowering of the load-sustaining hooks, the bars 153 bear on the sides of and are guided inA their movements by the spaced elements 123 and 1257 and, of course, the weight of the frame and the load which it carries through the instrumentality of the grappling hooks is imparted to and supported by the severalcarrying-Wheels through the cushion springs 96 and 137.

It will be perceived that it" is not necessary to reverse the action of the lifting motor to lower the load, since such motor may be operatedin a'single direction for lowering and hoisting. One especial advantage of such an arrangement is that it precludes,

the lifting of the load beyond a predetermined point by, a careless operator, which, if it were permitted to /occur, might damage the machine particularly when long material is being handled extending through the machine beneath the Working parts. Such hoisting motor, however, is provided with a reverse controllto permit lowering of the load before it is raised to the limit, since such action in some cases is desirable.

As the truck is driven astraddle the platform and load, its opposed grappling ooks are spaced apa-rt by their inwardly pressing springs an amount somewhat less than the width of the raised platform sustaining the load, thus assuring as the flaring hooks are spread apart by the sta-tionary platform that they will both properly and effectively engage the opposite edge portions of the platform, hence it' the truck and load when lifted from the ground are not exactly central With respect to one another, the balanced springs acting on the hooks will shift the load sidewise into such ,central position.

Incase the load to be transported is of greater height than will fit beneath the front portion of the truck,iit can be readily accommodated by the divided rear part of the appliance, and under such circumstances, the truck is backed up to strad'dle the platform and its charge, whereupon they are lifted and conveyed away in the manner already described.

Inasmuch as the rear part of the truck has a clear and unobstructed load receiving space extending upwardly from the ground indefinitely, a comparatively high load may be easily accommodated in this part of the truck. l ,A

In this patent application and the accompanying drawings a single preferred sented in detail, but those skilled in this art will readily understand that the invenf tion is not 'limited and restricted to the precise and exact details of structure shown' and described since they are capable of comparatively radical modification without departure from the heart and essence of the invention and Without the sacrifice of any of its substantial benefits and advantages.

1. En a motor-truck, the combination of carrying-Wheels, a frame mounted thereon, comprising a pair of spaced longitudinal frame members, a transverse beam rigidly fastened to said longitudinal members, a second cross beam, means pivotally connecting said second beam to said longitudinal members, and load lifting and carrying means on said frame.

2. In a motor-truck, the combination of carrying-wheels, a frame mounted thereon, comprising a pair of spaced longitudinal frame members, a transverse beam rigidly fastened to said longitudinal members at a pointback of the front ends of the latter, a second cross beam, means pivotally attaching said second beam to said longitudinal members near their front ends, and load lifting and carrying means on said frame.

il. ln a motor-truck, the combination of carrying-wheels, a frame mounted thereon, comprising a pair of spaced longitudinal frame members, a transverse beam rigidly fastened to said longitudinal members at a point back of the front ends of the latter but at a substantial distance in advance of their rear ends, thereby providing a clear load-carrying space between the' rearwardly extended parts of said longitudinal members, a` second cross beam, means pivotally attaching said second beam to said longitudinal members in front of said first beam,

and means to lift and carry the load on said frame.

' 'n aunotor-truck, the combination of carrying-Wheels, and a frame mounted thereon, comprising a pair of spaced tubular longitudinal frame members, a pair vof castings clamped around and keyed to said members, a transverse beam rigidly fastened to said castings, a second pair of castings clamped around and keyed to said members` a cross beam hinged to said second pair of castings, and means to lift and carry the loaden said frame.

5. In a motor-truck, the combination of carrying-Wheels, a frame mounted thereon, comprising a pair of spaced tubular longitudinal trame members, apair of castings clampedaround and keyed te said members at a point back ofthe front ends of the latter but at a substantial distance in ad- Vance or" their rear ends, thereby providing a clear load-carrying space between the rearwardly extended parts orI said longitw' dinal members, a second pair or" castings clamped around and keyed to said longitudinal members near their iront ends, a cross beam hinged to said second pair of castings, and means to litt and carry the load on said tramea 6. ln a motor-truck, the combination of carrying-Wheels, a main trame mounted thereon, comprising a pair oft spaced longitudinal trame members, a transverse beam rigidly fastened to said longitudinal members, a second cross beam, andmeans pivotally attaching said second beam to said lon gitudinal members, a supplemental trame rigidly connected to said second beam and having a trunnion mounting on said iirst beam, and load lifting and carrying means on said main trame` 7. In a motor-truck, the combination of carrying-Wheels, a main frame mounted thereon comprising a 1pair ot spaced longi tudinal frame members, a transverse beam rigidly fastened to said longitudinal meinbers at a point back of tbe iront ends ot the latter but at a substantial distance in ad" Vance of their rear ends, thereby providing a clear load-carrying space between the rearwardly extended parts oi said longitudinal members, a second cross beam, means pivotally attaching said second beam to said longitudinal members in front of said first beam, a supplemental frame rigidly connectedto said second beam` and having a trunnion mounting on said tirst beam, and load liftingl and carri/ine: means on said main frame.

8. ln a motor-truck, the combination of front andv rear carrying-Wheels, a main frame mounted thereon comprising a pair of spaced longitudinal trarne members, a. transverse beam rigidly fastened to said longitudinal members, a second cross beam, and means pivota-lly attaching said second beam to said longitudinal members, a supplemental frame rigidly connected to said second beam and having a trunnion mounting on said first beam, a drive-motor on said supple `mental frame, a driving connection between said motor and some of said Wheels, and a load lifting and carrying means on said main trarne.

, 9. ln a motontruck, the combination o front and rear carrying-Wheels, a main frame mounted thereon comprising a pair ospaced longitudinal trame members, a transverse beam rigidly fastened to said longitudinal members at a point back ot the front ends of the latter but at a substan tial distance in advance .of their rear ends, thereby providing a clear load-carryingv -space between the rearwardly extended parts of said longitudinal members, a second cross beam, and means piyotally attaching said second beam to said longitudinal members Lees it, 4be combination oic a frame having a pair ot widely spaced longitudinal trame members, transverse means connectingl said longitudinal members together crosswise at the 'front part only ot 'the trame thereby providing a clear load n carrying space between the rear portions oi said members, means to litt and support the loaden said frame, front carrying-wheels for said frame, means to drive front Wheels, means to steer said front-wheels, and rear carrying-Wheels beneath tbe rear portions of said'longitudinal members.

ll. ln a motor-truck, the combination oi a main-frame comprising a pair of 'spaced longitudinal trame members, a transverse beam rigidly fastened to said members at a point back of their front ends but at a substantial distance in advance of their rear ends, thereby pro 'iding clear loadecarrring space between the reamiardly extended parts of said longitudinal members, a seeond cross beam, means pivotally attaching said second beam to said longitudinal members in iront of said first beam, a supplemental ,ramerifridly connected to said secs fiend beam and having a pivotal mounting on said first beam, a drive-motor on supplemental frame, 'front carrying-Wheel means, a. driving connection between said motor and said means, means to steer front carrying-Wheel means, rear carryingwheels beneath the rear portions of said longitudinal members; and meansv on said "rame to ,lift and support the. load during its transportation by the truck.

l2. ln a motor-truck, the combination of a mainframe, a carryingwluiol column, a carrying-wheel associated with said column, links connecting said traine and column, a lever on said trame bearing on said column, a spring interposed between said traine and lever, and load lifting and carry/'ing means on said main trame.

13. In a motor-truck, the combination of a trame, a carrying-wheel column, a carrving-'wheel associated with said column, li s of substantially equal lengths connecting said frame and column, a frame bearing on said column, a spring interposed between said trame lever,

and load lifting and carrying means on said frame.

lever on said- Fa. j

liti@ liti ln a mot0rtruclt, tlie combination ot a trame composed atleast in part ot a boi- Lierse-e carrying-wheel associated with said column, means pivotaily conneccing said hollow member and column, a ever accommodated in part in said hollow member and bearing on said column, a spring interposed between said frame and lever, and load lifting and carrying means on seid frame.

l5. In a motor-truck, the con'ibination of a frame composed in part oi" o hollow member, a carrying-wheel column, acarryingwheel associated with column, links connecting seid frame and column, fi lever accommodated at least in part in and haying a fulcrum bearing on the inside of said hollow member and. bearing also on said column, a spring interposed between said frame and lever, and load lifting and carry ingmeans on said freine.

16. In e motor-truck, the combination of a frame composed in part of a longitudinal tubular member', a carrying-wheel column rovided with en external lu e carrv- .ing-wheel associated with said column,

means pivotully connecting seid freine and column, a lever accommodated in part in and having zi fulcrum bea-ring on the inside of seid tubular member and bearing `also on said column lug, u spring bearing against the under side of said tubular frame member, means extending through said lever und spring and bearing against theA lowerend of the spring and the top side of seid lever, and load lifting and carrying means on said frame.

l?. In a motor-truck, the combination or a main frame having spaced longitudinal Aframe elements, depending members secured to each of sfiid elements, a carrying-wheel frame hinged to one oisaid elements andguided by the other member, acarryingwheel mounted in said hinged frame, a sping connection between sind main and carrymg-Wheel frames, and loud lifting and carrying means on said main frame.

18, In a motor-truck, the combination of o main frame having spaced longitudinal frame elements, two depending members se! cured to eech of said elements, a carryingwheel frame hinged to one of each pair oi said members and guided by the other membei', a cnirrying-wheel mounted in each hinged frame, a spring housing mounted on each of said longitudinal elements, a spring in said housing bemin@ against its upper end, a yoke sirziddling each wheel and hav-4 ing .a stem equipped with means bearing against the under side oi each spring, und load lifting und carrying means on said mein frame.

19. lin a. rnctor-trucl,'the combination of a main frame having rearwardly extended spaced longitudinal frame elements, e carrying-wheel for euch oi said extended parts, e1 mounting for each of said wheeison its respective frame eiement, and iced grepplin'g,r means guided in their movements'by said mountings,'said latter means constituting the sole support for the load.

20. In a motor-truck, the combination of e main frame having rearwardly extended 704 spaced longitudinalframe elements, two depending members secured to each ci seid elements, a carrying-wheel frame hinged to one of said members of each pair and guided by the companion member, e, carryy` ing-wheel mounted in said hinged frame, a spring connection between said main and carrying-wheel frames, and load grappling I means adjacentto said wheels.

2l. ln a moto1truck,the combination of 80 a main frame having rearwardly extended spaced longitudinal frame elements, .two dee pending members secured to each of said elements, e carrying-wheel frame hinged to one of each of said pairs of members and 35 iided by the companion member, a .corr ing-wheel mdunted in each of said" hinged frames, a spring connection between said main and carryingwvheel frames, and load, grappling means their move-ments.l

22. ln a, motortruck, the combination of e main frame, steering and carrying wheels therefor, load grappling means adapted to guided by said members in lift and carry the load, rocker arms on said frame, means connecting said rocker arms and gra linfr means an o eratin shaft onnssid frame, a crank-erm' Vconstruction and crank-pin at each end of said shaft,

rods connecting said crank-pins sind rocker 169 tion of a frame, carrying-wheels therefor,

load grappling devices with outwardly liering ends hinged on said frame for movement transversely thereof, spring means. tending to press said devices inwardly toward the load, -and means to reise and lower said devices.

'25. In a motor-truck, the combination of a. frame comprising a pair of longitudinal :framemembers, transverse freine elements of substantially inverted U shape connecting said members together at their front portions, such members extending unconnected together rearwardly froml said transverse elements to provide a space for carrying an underslung load which my extend v beyond either end of the truck and' a. verticelly clear load vv csrryimg' space between. the rearwardly extended parts of'said-longitudinai members, carrying-wheels :for said rec eombmon el i of? engmdine lwme memsere? bmx-evene e'emene v m'ee 'e shape cemeeting seid me zogehe thei' iont portions, members exenng umonmeeed tegame?'femmxdy from sei il-ensvese eeme-ns 30 provide a spe/ce for carey ing an undershmg ical?. which may extenc' bef/@nfl eh'ef end of the lucl and e verm tice-,Ey clear eed-eemyng spese between @le reexwad'y exaendee pmts i said 'unel members, ion cerzNng-whees 11m" saf frame, rear calryngwheesfor 'zeme mmme on he 'rearwardly Quiz pa'tsof said ongtudna membexs, means also mount/ed on ehe reerW-arly exened parte of Sai@ cmg'udna memA to f md `carry kthe 'lead Suspended en said im ne.

Y. En za meier lift ruek, the cembnetion of a mainframe curyng-Wheels there ier,V an elengated" loud-supporting hom?? member, ifzing meanson seid main-frame. .means te mckngly supportlsad honk-memoez het; ends ou seid fting means with capaci@ fe? mmevefsey of the .mem-heme m engageem dem the load, 30

means in pen rigid Wh Seid mehr ffeme and in me. mevebe with seid hookmember im guide ehe baite? in its u and Vlrdown movements $0 prevent su stam 'tiel ongtudina xovemen el? 'he meek 35 membe feetvely ovhe main eme.

28. 1h a. moor ft truck? the combina,- ion o e meiibfmme, carrying-@wels therefor7 an eongated load-supporting ho0k-mef er, lfting means on seid mene@ immo, means e0 rockngj/ support seid hoek-member meer Doh ends on Seid lifting; means with capacity for swinging tensvelsey of the main-frame to engage and clear the load, means in part rigid Wh 45 said maiwframe and in peri; movebe wh sai@ hook-member to guide the letter in its up and down movemenle and to prevent subetanta longitudinal movememt of the hook membe relatively i@ the mein-frame, 50 enc brace means between seid hoek memner and that paro said guiding means mm'ebe with the hook member.

'HARRY B. RSS. 

